关于高速公路在风沙环境中的预警方法有效性的实验研究
Fang Wang1, Wen Deng1, Liyi Sun1
1School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan, China.
Traffic injury prevention
|October 27, 2025
概括
可变速度限制标志和可变信息板是最有效的高速公路安全在风沙环境. 这些方法显著降低了驾驶速度和心理工作量,提高了整体的交通管理.
科学领域:
- 道路安全工程工程 道路安全工程
- 交通管理系统是交通管理系统.
- 驾驶过程中的人类因素
背景情况:
- 高速公路上的风沙环境 (WSE) 由于可见度降低和覆盖着沙子的表面,造成了严重的驾驶风险.
- 有效的预警系统对于减轻这些风险和确保车辆安全至关重要.
研究的目的:
- 系统地评估七种常规预警方法在各种风沙条件下的有效性.
- 为优化沙暴易发地区交通设施布局提供科学支持.
主要方法:
- 驾驶模拟测试整合了车辆动态,驾驶行为和生理指标.
- 通过标准间相关性 (Criteria Importance Through Intercriteria Correlation,简称CRITIC) 方法来确定客观权重.
- 使用CRITIC-TOPSIS综合评估方法来对警告方法的有效性进行排名.
主要成果:
- 变速限制标志 (Sign.D) 和变速信息板 (Sign.E) 在所有测试环境中显示出最显著的警告效应.
- 这些有效的方法在沙尘路段的引导速度降低了54.4%.
- 使用Sign.D和Sign.E的司机与其他方法相比,经历了明显较低的心理工作负载.
结论:
- 建议在易风沙高速公路路段优先部署可变限速标志和可变信息板.
- 低效的指导标志应逐步淘汰,以优化交通设施的配置.
- 优化交通设施布局对于提高高速公路交通管理效率和驾驶安全至关重要.
相关概念视频
Survey Safety
368
Surveying near highways, rough terrain, or power lines involves significant risks. Working along highways is particularly dangerous and requires the use of warning signs and flagmen. It is safest to avoid working directly on roads and use offsets whenever possible. When highway work is unavoidable, it must follow all safety guidelines. Surveyors should wear bright clothing, such as orange reflective vests, to ensure visibility to motorists, coworkers, and hunters. In construction zones, wearing...
368
Design Example: Calculating Safe Diameter for Wind-Exposed Disc
351
Assessing safety in wind-exposed installations is crucial to preventing potential failures. This example explores the calculation and design adjustments needed to mount a circular disc on a building facade, where wind forces are a primary concern. A 4-meter diameter disc was initially designed as an aesthetic feature facing winds at a velocity of 25 meters per second, with an air density of 1.25 kilograms per cubic meter. Given these conditions, the drag force on the disc was determined using...
351
Abrasion Resistance of Concrete
503
Abrasion resistance is an essential characteristic of concrete that determines its durability and longevity under various wear conditions. Concrete surfaces are vulnerable to different types of abrasion. For instance, surfaces may wear down due to the constant movement of vehicles or be eroded by solids carried in water, as seen in concrete canal linings. Specific tests are conducted to measure the abrasion resistance of concrete.
One such test is the revolving disc test, where three plates...
One such test is the revolving disc test, where three plates...
503
Design Example: Managing Concrete Workability
294
This example deals with managing the workability of concrete for a raft foundation project under hot weather conditions. Workability is crucial for ensuring the concrete is easy to place, compact, and finish. In this scenario, a slump test — a common method to measure the workability of fresh concrete — initially indicated low workability. This was attributed to the rapid water loss from the concrete mix, exacerbated by the high temperatures causing the course aggregates to heat up.
294


